[gexiv2] Add _try_tag_supports_multiple_values() to docs

[Jens Georg <jensgeorg src gnome org>]

commit 39bd4a4d6aae1e8a7c63a0a1f3d18a5d8d0181a6
Author: postscript-dev <43813-postscript-dev users noreply gitlab gnome org>
Date:   Sat Mar 20 16:10:16 2021 +0000

    Add _try_tag_supports_multiple_values() to docs

 docs/reference/gexiv2-sections.txt | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/docs/reference/gexiv2-sections.txt b/docs/reference/gexiv2-sections.txt
index 06ed192..e23b158 100644
--- a/docs/reference/gexiv2-sections.txt
+++ b/docs/reference/gexiv2-sections.txt
@@ -137,6 +137,7 @@ gexiv2_metadata_clear
 gexiv2_metadata_try_get_tag_label
 gexiv2_metadata_try_get_tag_description
 gexiv2_metadata_try_get_tag_type
+gexiv2_metadata_try_tag_supports_multiple_values
 gexiv2_metadata_get_mime_type
 gexiv2_metadata_get_pixel_width
 gexiv2_metadata_get_pixel_height